package com.tom;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

/**
 * Servlet Filter implementation class CharacterEncodingfFilter
 */
public class CharacterEncodingFilter implements Filter {

	String CharacterEncoding;
	boolean enabled;
	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		CharacterEncoding = fConfig.getInitParameter("CharacterEncoding");// TODO Auto-generated method stub
		enabled = "true".equalsIgnoreCase(fConfig.getInitParameter("enabled").trim());
	}

	
	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		if (enabled || CharacterEncoding != null){
			request.setCharacterEncoding(CharacterEncoding);
			response.setCharacterEncoding(CharacterEncoding);// TODO Auto-generated method stub
		}
		// place your code here
		
		// pass the request along the filter chain
		chain.doFilter(request, response);
	}
		
	/**
     * Default constructor. 
     */
    public CharacterEncodingFilter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}



}
